Blar i Scientific publications på emneord "VDP::Matematikk og naturvitenskap: 400"
Viser treff 1-10 av 10
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A tool for cost-effectiveness analysis of field scale sediment-bound phosphorus mitigation measures and application to analysis of spatial and temporal targeting in the Lunan Water catchment, Scotland
(Journal article; Peer reviewed, 2017)The cost-effectiveness of six edge-of-field measures for mitigating diffuse pollution fromsediment bound phos- phorus (P) runoff from temperate arable farmland is analysed at catchment/field scales. These measureswere: ... -
Assessment of risk and risk-reducing measures related to the introduction and dispersal of the invasive alien carpet tunicate Didemnum vexillum in Norway
(Peer reviewed; Journal article, 2023)Didemnum vexillum is colonial sea squirt, a marine species which originates from the northwest Pacific; it was first recorded in Norway in November 2020. Didemnum vexillum is an alien species, meaning that it is a species ... -
Assessment of the risk to Norwegian biodiversity from private import and keeping of Northern Cardinal. Scientific Opinion of the Panel on Biodiversity of the Norwegian Scientific Committee for Food and Environment
(Peer reviewed; Journal article, 2023)VKM has evaluated the risk to biodiversity from allowing private import and keeping of the Northern Cardinal as a caged bird in Norway, for birds acquired through the bird trade. VKM has reviewed the invasion ecology of ... -
Assessment of the risks posed by domestic cats (Felis catus) to biodiversity and animal welfare in Norway
(Peer reviewed; Journal article, 2023)VKM has evaluated to what extent keeping of cats pose a risk to biodiversity in Norway. Risks were assessed separately for threats to biodiversity from direct predation, indirect (non-lethal) effects, competition with other ... -
Development of species-specific eDNA-based test systems for monitoring of non-indigenous species in Danish marine waters
(NIVA-rapport;7204, Research report, 2018)The MONIS 3 project reports the development of 22 species-specific eDNA-based test systems for monitoring and mapping of the occurrence of non-indigenous species in Danish marine waters. The development has been undertaken ... -
Innsjørestaurering i Tunevannet: Utredning av fosforbindende stoffer
(NIVA-rapport;7285, Research report, 2018)Hovedmålet med denne rapporten er å lage en faglig forankret utredning om hvordan fosforbindende stoffer kan bidra til å bedre vannkvaliteten i Tunevannet. Rapporten skal også gi en oversikt over andre aktuelle ... -
Overvåking av kransalger i kalksjøer ved Harstad/Narvik lufthavn, Evenes.
(NIVA-rapport;7323, Research report, 2018)Hensikten med oppdraget har vært å foreta undersøkelser av kransalgeforekomst og -status i Langvatn, Lavangsvatn og Kjerkvatn i 2018, samt foreslå et overvåkningsprogram for området. De tre innsjøene inngår i naturreservater ... -
Regrowth of kelp after removal of sea urchins (Strongylocentrotus droebachiensis)
(NIVA-rapport;7431, Research report, 2019)With few natural predators, green sea urchins (Strongylocentrotus droebachiensis) have grown in numbers, grazed down large kelp forest areas in Northern Norway into urchin barrens. NIVA deployed three underwater cages ... -
Towards a future without stocking: harvest and river regulation determine long-term population viability of migratory salmonids
(Peer reviewed; Journal article, 2021)Freshwater species are particularly vulnerable to emerging threats linked to climate change because they are often already heavily impacted by habitat destruction, pollution, and exploitation. For many harvested populations ... -
Utvidelse av Fv. 564 Ulsetstemma-Slettestølsvegen. Forundersøkelser av økologisk tilstand i vassdrag
(NIVA-rapport;7331, Research report, 2018)I forbindelse med planarbeid for utvidelse av Fv. 564 Ulset-Slettestølvegen i Åsane i Bergen er det utført en forundersøkelse av økologisk tilstand i vassdrag innenfor planområdet, og vurdering av naturfaglige verdier. ...